Hi Daniel,

if i turn on mem_safety=1

it doesn't crash.

here is the syslog

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e88b8), called from tm: h_table.c: free_cell(157), first free tm: h_table.c: free_cell(157) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e71d0), called from tm: h_table.c: free_cell(157), first free tm: h_table.c: free_cell(157) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581f47f0), called from tm: h_table.c: free_cell(159), first free tm: h_table.c: free_cell(159) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e8790), called from dialog: dlg_handlers.c: dlg_iuid_sfree(323), first free dialog: dlg_handlers.c: dlg_iuid_sfree(323) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e87f8), called from tm: h_table.c: free_cell(178), first free tm: h_table.c: free_cell(178) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e7148), called from tm: h_table.c: free_cell(178), first free tm: h_table.c: free_cell(178) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e5c98), called from dialog: dlg_handlers.c: dlg_iuid_sfree(323), first free dialog: dlg_handlers.c: dlg_iuid_sfree(323) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e5b10), called from tm: h_table.c: free_cell(178), first free tm: h_table.c: free_cell(178) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e90b8), called from tm: h_table.c: free_cell(186), first free tm: h_table.c: free_cell(186) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e94a8), called from tm: h_table.c: free_cell(186), first free tm: h_table.c: free_cell(186) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e9898), called from tm: h_table.c: free_cell(186), first free tm: h_table.c: free_cell(186) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e9c80), called from tm: h_table.c: free_cell(186), first free tm: h_table.c: free_cell(186) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581f4170), called from tm: h_table.c: free_cell(189), first free tm: h_table.c: free_cell(189) - aborting

Dec 12 05:32:22 kelvin /usr/local/sbin/kamailio[30189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e5de0), called from tm: h_table.c: free_cell(244), first free tm: h_table.c: free_cell(244) - aborting

..cut

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581ee528), called from tm: h_table.c: free_cell(157), first free tm: h_table.c: free_cell(157) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581ecae0), called from tm: h_table.c: free_cell(157), first free tm: h_table.c: free_cell(157) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581ee238), called from tm: h_table.c: free_cell(159), first free tm: h_table.c: free_cell(159) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e8790), called from dialog: dlg_handlers.c: dlg_iuid_sfree(323), first free dialog: dlg_handlers.c: dlg_iuid_sfree(323) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e7148), called from tm: h_table.c: free_cell(178), first free tm: h_table.c: free_cell(178) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581eb4c8), called from tm: h_table.c: free_cell(178), first free tm: h_table.c: free_cell(178) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581eb630), called from dialog: dlg_handlers.c: dlg_iuid_sfree(323), first free dialog: dlg_handlers.c: dlg_iuid_sfree(323) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581eb6d0), called from tm: h_table.c: free_cell(178), first free tm: h_table.c: free_cell(178) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581eec48), called from tm: h_table.c: free_cell(186), first free tm: h_table.c: free_cell(186) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581e88b8), called from tm: h_table.c: free_cell(186), first free tm: h_table.c: free_cell(186) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581f4c18), called from tm: h_table.c: free_cell(189), first free tm: h_table.c: free_cell(189) - aborting

Dec 12 05:32:23 kelvin /usr/local/sbin/kamailio[30190]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7eff581eb778), called from tm: h_table.c: free_cell(244), first free tm: h_table.c: free_cell(244) - aborting

Kelvin Chua

On Tue, Dec 10, 2013 at 7:28 AM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

This is for an ACK and slightly different case -- it can happen only with MEMDBG=1 -- I will look over it as well.

Can you run another test with:

mem_safety=1

?

Still keeping MEMDBG=1

Daniel
On 09/12/13 19:22, Kelvin Chua wrote:
#0 0x00007fbf3aee9425 in raise () from /lib/x86_64-linux-gnu/libc.so.6

No symbol table info available.

#1 0x00007fbf3aeecb8b in abort () from /lib/x86_64-linux-gnu/libc.so.6

No symbol table info available.

#2 0x000000000054d710 in qm_free (qm=0x7fbf30414000, p=0x7fbf3088a9a8, file=0x7fbf38b85cb5 "tm: h_table.c",

func=0x7fbf38b85e58 "free_cell", line=157) at mem/q_malloc.c:470

f = 0x7fbf3088a978

size = 0

next = 0x7fbf30449518

prev = 0x7fbf3088c660

__FUNCTION__ = "qm_free"

#3 0x00007fbf38b19b10 in free_cell (dead_cell=0x7fbf30887de8) at h_table.c:157

b = 0x7fff7da2d4b0 " ֢}\377\177"

i = 1

rpl = 0x7fbf30887de8

tt = 0x7fff7da2d9c0

foo = 0x22b7da2d3d0

cbs = 0x0

cbs_tmp = 0x0

__FUNCTION__ = "free_cell"

#4 0x00007fbf38b4a486 in t_unref (p_msg=0x7fbf3abbf368) at t_lookup.c:1574

kr = 12

__FUNCTION__ = "t_unref"

#5 0x00007fbf38b4e60b in w_t_unref (foo=0x7fbf3abbf368, flags=2147483649, bar=0x0) at tm.c:725

No locals.

#6 0x00000000004db5bb in exec_post_script_cb (msg=0x7fbf3abbf368, type=REQUEST_CB_TYPE) at script_cb.c:195

cb = 0x7fbf3abf4fa0

flags = 2147483649

#7 0x00000000004a9cd8 in receive_msg (

buf=0x9263c0 "ACK sip:18X88X441X1@2X8.1X1.3X.2X SIP/2.0\r\nVia: SIP/2.0/UDP 125.60.156.243:17218;rport;branch=z9hG4bKogunmjtk\r\nMax-Forwards: 16\r\nProxy-Authorization: Digest username=\"kelvin\",realm=\"2X8.1X1.3X.2X\",non".

.., len=555, rcv_info=0x7fff7da2d680) at receive.c:227

msg = 0x7fbf3abbf368

ctx = {rec_lev = -1, run_flags = 0, last_retcode = 984293392, jmp_env = {{__jmpbuf = {140459304019208,

1204527218, 8881072, 0, 0, 0, 0, 140459312289652}, __mask_was_saved = 5, __saved_mask = {__val = {

0, 140459304039824, 1, 140459125283080, 1204527218, 2107823648, 1024, 6402790880,

140459125283080, 140735301211616, 5493883, 4087102589, 140459125283080, 16963, 140459125283080,

140735301211772}}}}}

ret = 0

inb = {

s = 0x9263c0 "ACK sip:18X88X441X1@2X8.1X1.3X.2X SIP/2.0\r\nVia: SIP/2.0/UDP 125.60.156.243:17218;rport;branch=z9hG4bKogunmjtk\r\nMax-Forwards: 16\r\nProxy-Authorization: Digest username=\"kelvin\",realm=\"2X8.1X1.3X.2X\",non"..., len = 555}

__FUNCTION__ = "receive_msg"

#8 0x000000000054148b in udp_rcv_loop () at udp_server.c:557

len = 555

buf = "ACK sip:18X88X441X1@2X8.1X1.3X.2X SIP/2.0\r\nVia: SIP/2.0/UDP 125.60.156.243:17218;rport;branch=z9hG4bKogunmjtk\r\nMax-Forwards: 16\r\nProxy-Authorization: Digest username=\"kelvin\",realm=\"2X8.1X1.3X.2X\",non"...

tmp = 0x7fff7da2d690 "\020ע}\377\177"

from = 0x7fbf3abc4df0

fromlen = 16

ri = {src_ip = {af = 2, len = 4, u = {addrl = {8382069885, 140735301211920}, addr32 = {4087102589, 1,

2107823888, 32767}, addr16 = {15485, 62364, 1, 0, 55056, 32162, 32767, 0},

addr = "}<\234\363\001\000\000\000\020ע}\377\177\000"}}, dst_ip = {af = 2, len = 4, u = {addrl = {

489123792, 0}, addr32 = {489123792, 0, 0, 0}, addr16 = {28624, 7463, 0, 0, 0, 0, 0, 0},

addr = "\320o'\035", '\000' <repeats 11 times>}}, src_port = 17218, dst_port = 5060,

proto_reserved1 = 0, proto_reserved2 = 0, src_su = {s = {sa_family = 2,

sa_data = "CB}<\234\363\000\000\000\000\000\000\000"}, sin = {sin_family = 2, sin_port = 16963,

sin_addr = {s_addr = 4087102589}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {

sin6_family = 2, sin6_port = 16963, sin6_flowinfo = 4087102589, sin6_addr = {__in6_u = {

__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {

0, 0, 0, 0}}}, sin6_scope_id = 0}}, bind_address = 0x7fbf3aaf03d8, proto = 1 '\001'}

__FUNCTION__ = "udp_rcv_loop"

#9 0x000000000046ce9c in main_loop () at main.c:1638

i = 0

pid = 0

si = 0x7fbf3aaf03d8

si_desc = "udp receiver child=0 sock=2X8.1X1.3X.2X:5060\000\364\357:\000\\,5\277\177\000\000r\240\313G\000\000\000\000\000DA\000\000\000\000\000\300٢}\377\177", '\000' <repeats 18 times>"\360, ע}\377\177\000\000\232\373K\000\000\000\000\000\020آ}\377\177\000\000\240Ó\000\000\000\000"

nrprocs = 4

__FUNCTION__ = "main_loop"

#10 0x000000000046fec0 in main (argc=15, argv=0x7fff7da2d9c8) at main.c:2566

cfg_stream = 0xfd6010

c = -1

r = 0

tmp = 0x7fff7da2df48 ""

tmp_len = 0

port = 4274515

proto = 0

options = 0x5e5c10 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"

ret = -1

seed = 3558558127

rfd = 4

debug_save = 0

debug_flag = 0

dont_fork_cnt = 0

n_lst = 0x5d0670

p = 0xc2 <Address 0xc2 out of bounds>

__FUNCTION__ = "main"

...cut
Kelvin Chua
On Tue, Dec 10, 2013 at 1:04 AM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:
It is a different place now, can you give the bt full output?

Cheers,
Daniel
On 09/12/13 17:18, Kelvin Chua wrote:
i didn's set any global parameter, just the defaults.

yes, i can reproduce it consistently, i just send an INVITE and CANCEL while kamailio is trying the destinations. (serial forks to non-existent IP)

after i send the CANCEL, kamailio will crash.

below is the MEMDBG=1 syslog:

Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22191]: WARNING: tm [t_lookup.c:1564]: t_unref(): WARNING: script writer didn't release transaction

Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7f35a60e01e0), called from tm: h_table.c: free_cell(157), first free tm: h_table.c: free_cell(157) - aborting

Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22209]: : <core> [pass_fd.c:293]: receive_fd(): ERROR: receive_fd: EOF on 13

Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: ALERT: <core> [main.c:788]: handle_sigs(): child process 22189 exited by a signal 6

Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: ALERT: <core> [main.c:791]: handle_sigs(): core was generated

Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: ERROR: ctl [ctl.c:379]: mod_destroy(): ERROR: ctl: could not delete unix socket /tmp/kamailio_ctl: Operation not permitted (1)

Dec 9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7f35a60e01e0), called from tm: h_table.c: free_cell(157), first free tm: h_table.c: free_cell(157)
Kelvin Chua
On Mon, Dec 9, 2013 at 11:54 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Can you compile with MEMDBG=1 in Makefile.defs and try again? Might be a memory overwritten issues somewhere. Look in the syslog for memory related message.

Few more details needed ... do you have memjoin global parameter set? Is the situation reproducible, or it happens sporadically?

Cheers,
Daniel
On 09/12/13 16:45, Kelvin Chua wrote:
tried latest branch 4.0, also segfault
similar backtrace
Kelvin Chua
On Mon, Dec 9, 2013 at 7:13 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Hello,

can you try latest branch 4.0? There were some fixes for similar case. Soon will be a 4.0.5 release.

Cheers,
Daniel

On 09/12/13 10:35, Kelvin Chua wrote:
following is backtrace:

#0 qm_detach_free (frag=0x7f91a4656170, qm=<optimized out>) at mem/q_malloc.c:269

prev = 0x7f91a4656170

next = 0x0

#1 qm_malloc (qm=0x7f91a429b000, size=3840) at mem/q_malloc.c:386

f = 0x7f91a4656170

hash = -1536859792

#2 0x000000000050977f in shm_malloc (size=3832) at parser/../mem/shm_mem.h:262

p = <optimized out>

#3 sip_msg_shm_clone (org_msg=0x7f91ae9d7630, sip_msg_len=0x7fff56a2dde0, clone_lumps=0) at sip_msg_clone.c:502

len = 3832

hdr = <optimized out>

new_hdr = <optimized out>

last_hdr = <optimized out>

via = <optimized out>

prm = <optimized out>

to_prm = <optimized out>

new_to_prm = <optimized out>

new_msg = <optimized out>

p = <optimized out>

__FUNCTION__ = "sip_msg_shm_clone"

#4 0x00007f91ac989062 in build_cell (p_msg=0x7f91ae9d7630) at h_table.c:372

new_cell = 0x7f91a4656180

sip_msg_len = <optimized out>

old = <optimized out>

cbs = <optimized out>

cbs_tmp = <optimized out>

xold = <optimized out>

#5 0x00007f91ac9b5fc6 in new_t (p_msg=0x7f91ae9d7630) at t_lookup.c:1357

new_cell = <optimized out>

#6 t_newtran (p_msg=0x7f91ae9d7630) at t_lookup.c:1497

lret = <optimized out>

my_err = <optimized out>

canceled = <optimized out>

__FUNCTION__ = "t_newtran"

#7 0x00007f91ac9a99e0 in t_forward_cancel (p_msg=0x7f91ae9d7630, proxy=0x0, proto=0, tran=0x7fff56a2e2c0) at t_fwd.c:1607

t_invite = <optimized out>

t = 0x0

ret = <optimized out>

new_tran = <optimized out>

dst = {send_sock = 0x63371f, to = {s = {sa_family = 54224, sa_data = "\003\255\221\177\000\000\020\300\220\256\221\177\000"}, sin = {sin_family = 54224,

sin_port = 44291, sin_addr = {s_addr = 32657}, sin_zero = "\020\300\220\256\221\177\000"}, sin6 = {sin6_family = 54224, sin6_port = 44291,

sin6_flowinfo = 32657, sin6_addr = {__in6_u = {__u6_addr8 = "\020\300\220\256\221\177\000\000\070\261W\000\000\000\000", __u6_addr16 = {49168, 44688,

32657, 0, 45368, 87, 0, 0}, __u6_addr32 = {2928721936, 32657, 5747000, 0}}}, sin6_scope_id = 0}}, id = 0, proto = 96 '`', send_flags = {

f = 225 '\341', blst_imask = 162 '\242'}}

host = {s = 0x0, len = 0}

port = <optimized out>

__FUNCTION__ = "t_forward_cancel"

#8 0x00007f91ac99ae15 in t_relay_to (p_msg=0x7f91ae9d7630, proxy=0x0, proto=0, replicate=0) at t_funcs.c:264

ret = 0

new_tran = <optimized out>

t = <optimized out>

dst = {send_sock = 0x0, to = {s = {sa_family = 0, sa_data = '\000' <repeats 13 times>}, sin = {sin_family = 0, sin_port = 0, sin_addr = {s_addr = 0},

sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {sin6_family = 0, sin6_port = 0, sin6_flowinfo = 0, sin6_addr = {__in6_u = {

__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id = 0}}, id = 0,

proto = 64 '@', send_flags = {f = 243 '\363', blst_imask = 162 '\242'}}

port = <optimized out>

host = {s = 0x7fff56a2eab8 "0[*\244\221\177", len = -1398876638}

__FUNCTION__ = "t_relay_to"

Kelvin Chua
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-- Daniel-Constantin Mierla - http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda